Imperial College London

ProfessorSergeiChernyshenko

Faculty of EngineeringDepartment of Aeronautics

Chair in Aerodynamics
 
 
 
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Contact

 

+44 (0)20 7594 5548s.chernyshenko Website

 
 
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Location

 

211aCity and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Ghebali:2017,
author = {Ghebali, S and Chernyshenko, S and Leschziner, M},
title = {Turbulent drag reduction by wavy wall},
url = {http://hdl.handle.net/10044/1/65323},
year = {2017}
}

RIS format (EndNote, RefMan)

TY  - CPAPER
AB - Copyright © 2016 Zakon Group LLC. Fully-developed turbulent flow in channels with oblique wavy walls is analysed, from a drag-reduction perspective, by means of Direct Numerical Simulations (DNS). The wavy geometry is chosen to emulate the shear strain produced by a Spatial Stokes Layer (SSL) generated by oscillatory wall motion. As the cost of performing a parametric optimisation is prohibitive, an alternate solution is presented, based on a linear model of a perturbed plane-channel flow, using a turbulent viscosity. Flow properties and levels of drag reduction or increase are reported for various configurations.
AU - Ghebali,S
AU - Chernyshenko,S
AU - Leschziner,M
PY - 2017///
TI - Turbulent drag reduction by wavy wall
UR - http://hdl.handle.net/10044/1/65323
ER -